Stator enabling good shim bearing capacity while optimising the magnetic circuit, and method for electrical insulation of said stator

A technology for stators and insulators, applied in the shape/style/structure of winding insulation, laying solid insulation, starting motors for engines, etc. It can solve the problem that the slot entrance opening cannot be made smaller than the width of the conductive wire, etc.

Inactive Publication Date: 2017-05-17
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, this solution has its limitations, since the increase in the size of the tooth root leads to a reduction in the slot entry opening, whereas these stators

Method used

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  • Stator enabling good shim bearing capacity while optimising the magnetic circuit, and method for electrical insulation of said stator
  • Stator enabling good shim bearing capacity while optimising the magnetic circuit, and method for electrical insulation of said stator
  • Stator enabling good shim bearing capacity while optimising the magnetic circuit, and method for electrical insulation of said stator

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Embodiment Construction

[0039] Reference is made to said figures in order to describe advantageous embodiments, but in a non-limiting way, for the method for manufacturing a stator and for depositing an insulating coating according to the invention.

[0040]In this description and in the claims, the terms "near" and "upper" refer to elements closer to the outer periphery of the stator, i.e. closer to the housing, according to a direction radial to the axis of rotation X of the rotating electrical machine, Whereas the terms "distal" and "lower" refer to elements close to the inner periphery of the stator, ie close to the rotor.

[0041] The stator 21 according to the invention is constituted by a plurality of plates 1a, 1b, 1c,..., 1n forming a set of plates 1 having a generally cylindrical form, the stator having a plurality of radial slots 2, each slot The mouth is delimited by two adjacent teeth 3 that extend radially and are connected to each other by their proximal end 3A and whose distal end 3B ...

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Abstract

The invention relates to a stator consisting of a plurality of metal sheets (1a, 1b, 1c,..., 1n) forming a generally cylindrical packet of metal sheets (1), said stator having a plurality of radial notches (2), each being delimited by two adjacent teeth (3) extending radially and being connected to one another by the proximal end (3A) thereof, the distal ends (3B) thereof defining a cylindrical axial recess capable of receiving a rotor and being provided with tooth roots (4), an insulator (5) for insulating the bottom of the notch which is provided inside the notches and covers the inner wall of said notches along the useful boundary for receiving conductive wires (F), said stator further comprising a plurality of flat shims (6) for closing the notches, characterised in that each notch-closing shim is arranged inside a notch, at a distance greater than zero from the lower end of the notch-bottom insulator.

Description

technical field [0001] The invention relates to a stator, an alternator-starter or a rotating electrical machine of an alternator for a motor vehicle. Background technique [0002] The stator is usually made up of a plurality of plates forming a set of plates having a cylindrical form with radial slots, each slot delimited by two adjacent teeth by their proximal The ends are connected to each other. The teeth extend radially and their distal ends define a cylindrical axial receptacle delimited by an inner surface that can receive the rotor. The distal portion of each tooth has a root portion formed by a protrusion extending in the direction of the inner chamber of the slot in order to reduce the width of the slot at its entrance. [0003] The slots are provided in their interior with a slot base insulation which covers the inner wall of said slot over the useful filling perimeter of the conductive wire. This insulator has a cross-section in the form of a "U", the lateral ...

Claims

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Application Information

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IPC IPC(8): H02K3/487H02K3/44H02K3/34H02K15/12
CPCH02K3/345H02K3/44H02K3/487H02K15/12H02K2213/03F02N11/00H02K15/10
Inventor V.拉梅特S.德-克莱尔E.马昆根
Owner VALEO EQUIP ELECTRIC MOTEUR
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